Re: [uml-devel] Clearing kmalloc_ok during shutdown is broken - malloc will clear our data.

[Blaisorblade <blaisorblade@yahoo.it>]

On Monday 03 October 2005 15:40, Allan Graves wrote:
> I'm not understanding why glibc would break the registers at will.
>  From setjmp:
>     /* NOTE: The machine-dependent definitions of `__sigsetjmp'
>        assume that a `jmp_buf' begins with a `__jmp_buf' and that
>        `__mask_was_saved' follows it.  Do not move these members
>        or add others before it.  */

> Seems to indicate to me that this isn't gonna change,
the comments above are mostly relative to the definitions of __sigsetjmp, i.e. 
to glibc internal code. Also, it's related to the layout of the structure, 
while our main problem is not the structure layout.
> and I'm using the 
> bits/setjmp.h defines, so if they do change, the code should just follow
> along with the change.  Am I missing something?
I didn't even see those constants - I stopped earlier, at __jmp_buf_tag. Given 
that it feels like a Glibc private thing, I worried.

Since those constants are explicitly exported, I guess that's for userspace 
programs as well, so Glibc provides that API as a public one.
-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

	

	
		
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